Knowing what to drink during intermittent fasting is just as important as knowing when to eat. The wrong drink can break your fast without you realizing it, while the right drinks make fasting easier by reducing hunger. The simple rule is this. During your fasting hours, stick to drinks with zero calories.
Water is the best choice, followed by black coffee, plain tea, and lemon water without sugar. Avoid anything with sugar, milk, cream, or alcohol until your eating window opens. If you follow this one rule, you will never have to wonder whether your drink ruined your fast. This guide covers every drink you need to know about.
What to Drink During Intermittent Fasting Without Breaking Your Fast
Everything you drink during a fast must have zero calories or almost zero calories. This is the golden rule. Even 50 calories from milk in your coffee can signal your body that food has arrived, which stops the fat burning process. Water is the perfect fasting drink. It has zero calories, keeps you hydrated, and helps control hunger.
Aim for at least eight glasses during the day, and drink more if you feel hungry, because thirst often hides behind hunger. Sparkling water is also fine and many people find it more satisfying than still water. The bubbles make your stomach feel full, which helps during the difficult morning hours. Just choose plain sparkling water without added sugar or sweet flavors. If plain water feels boring, add a slice of lemon or cucumber.
This adds taste with almost zero calories and will not break your fast. Some people worry that cold water slows digestion, but there is no strong evidence for this. Drink it at whatever temperature you enjoy. If you get bored of plain water, rotate between still water, sparkling water, and lemon water through the day. Variety makes it easier to drink enough. Keep a large bottle of water on your desk so you drink without thinking.
Drinks That Help You Fast Longer
Black coffee is the most popular fasting drink after water. It has almost zero calories and the caffeine reduces hunger for hours. Drink it black, with nothing added. Even a small splash of milk adds enough calories to matter. Green tea is another excellent choice. It has almost zero calories and contains natural compounds that may slightly support fat burning.
The small amount of caffeine gives gentle energy without the strong hit of coffee. Herbal teas like chamomile, peppermint, or ginger tea are perfect for the evening because they have no caffeine and help you relax. Many people ask what to drink during intermittent fasting to fight morning hunger, and the honest answer is that black coffee or green tea works best for most. A glass of water with lemon is refreshing and adds vitamin C with almost no calories. Some people add one tablespoon of apple cider vinegar to a large glass of water.
This is very low in calories and may help control appetite, but always dilute it and drink it with a straw to protect your teeth. Bone broth is another option some fasters use. It has a small number of calories, so strict fasters avoid it, but it can help on difficult days.
Drinks to Avoid While Fasting
Sugary drinks are the worst choice during a fast. Soda, sweetened tea, energy drinks, and fruit juice all contain enough sugar to break your fast immediately and spike your hunger. Fruit juice surprises many people, because it feels healthy, but a single glass has as much sugar as soda. Milk and cream are also out during fasting hours. That creamy morning coffee with milk may feel harmless, but it ends your fast.
Save it for your eating window. Alcohol is another mistake. It adds empty calories, increases hunger the next day, and harms your sleep. Diet soda is a gray area. It has zero calories so it does not technically break your fast, but the sweet taste can increase cravings for real sugar in some people.
If diet soda helps you survive the fast, one can is acceptable, but water is always the better choice. The same rule applies to fancy coffees loaded with syrup and cream. If it tastes like dessert, it breaks your fast. When in doubt, choose water. It is the only drink that is guaranteed safe during every type of fast.
How Much Should You Drink
Most people should drink at least eight to ten glasses of water during the day, and fasting days are no exception. If you exercise or sweat a lot, drink even more. Long fasts can flush out salts, so some people add a small pinch of salt to their water. This replaces lost electrolytes and can reduce headaches.
Do not overdo the salt, a tiny pinch is enough. Watch for signs that you need more fluids. Headaches, tiredness, dizziness, and dark yellow urine all mean you should drink more water right away. On the other hand, do not force yourself to drink far beyond thirst.
Your body is good at signaling what it needs. Keep water within reach all day and sip often instead of drinking huge amounts at once. A good habit is to drink a full glass of water right when you wake up, since you lose fluids overnight.
FAQs
Will lemon water break my fast?
No, plain lemon water with just a squeeze of lemon has almost zero calories and will not break your fast. Do not add sugar or honey. If you add more than half a lemon, the calories stay very low but the taste gets strong, so keep it light.
Can I drink tea with milk during intermittent fasting?
No, milk adds enough calories and protein to break your fast. Drink your tea plain during fasting hours and save milky tea for your eating window. Black tea, green tea, and herbal tea are all fine without milk.
Does apple cider vinegar break a fast?
One tablespoon of apple cider vinegar diluted in a large glass of water has very few calories and does not break a fast for most people. Always dilute it, drink it with a straw, and rinse your mouth after to protect your teeth.
How much water should I drink while fasting?
Aim for at least eight to ten glasses spread through the day. Drink more if you exercise, sweat, or feel headaches and tiredness. Keep water nearby and sip often instead of drinking large amounts at once.
Can I chew gum while intermittent fasting?
Sugar free gum has very few calories and will not break your fast for most people. However, the sweet taste and chewing can increase hunger in some people. If gum makes you hungrier, skip it and drink water instead.
Conclusion
Knowing what to drink during intermittent fasting removes half the stress of fasting. Stick to water, black coffee, plain tea, and lemon water, and avoid everything with sugar, milk, or alcohol until your eating window opens. Drink enough through the day and watch for signs of dehydration. Once you find two or three drinks that you enjoy, fasting stops feeling like a struggle and becomes a simple daily rhythm. Start with water and build from there. Be patient for the first week while your body adjusts, and the results will follow.
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